diff --git a/static_src/reducers/permissions.test.js b/static_src/reducers/permissions.test.js
new file mode 100644
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--- /dev/null
+++ b/static_src/reducers/permissions.test.js
@@ -0,0 +1,105 @@
+// Copyright 2020 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import {assert} from 'chai';
+import sinon from 'sinon';
+
+import * as permissions from './permissions.js';
+import * as example from 'shared/test/constants-permissions.js';
+import * as exampleIssues from 'shared/test/constants-issueV0.js';
+
+import {prpcClient} from 'prpc-client-instance.js';
+
+let dispatch;
+
+describe('permissions reducers', () => {
+  it('root reducer initial state', () => {
+    const actual = permissions.reducer(undefined, {type: null});
+    const expected = {
+      byName: {},
+      requests: {
+        batchGet: {error: null, requesting: false},
+      },
+    };
+    assert.deepEqual(actual, expected);
+  });
+
+  it('byName updates on BATCH_GET_SUCCESS', () => {
+    const action = {
+      type: permissions.BATCH_GET_SUCCESS,
+      permissionSets: [example.PERMISSION_SET_ISSUE],
+    };
+    const actual = permissions.byNameReducer({}, action);
+    const expected = {
+      [example.PERMISSION_SET_ISSUE.resource]: example.PERMISSION_SET_ISSUE,
+    };
+    assert.deepEqual(actual, expected);
+  });
+});
+
+describe('permissions selectors', () => {
+  it('byName', () => {
+    const state = {permissions: {byName: example.BY_NAME}};
+    const actual = permissions.byName(state);
+    assert.deepEqual(actual, example.BY_NAME);
+  });
+});
+
+describe('permissions action creators', () => {
+  beforeEach(() => {
+    sinon.stub(prpcClient, 'call');
+    dispatch = sinon.stub();
+  });
+
+  afterEach(() => {
+    prpcClient.call.restore();
+  });
+
+  describe('batchGet', () => {
+    it('success', async () => {
+      const response = {permissionSets: [example.PERMISSION_SET_ISSUE]};
+      prpcClient.call.returns(Promise.resolve(response));
+
+      await permissions.batchGet([exampleIssues.NAME])(dispatch);
+
+      sinon.assert.calledWith(dispatch, {type: permissions.BATCH_GET_START});
+
+      const args = {names: [exampleIssues.NAME]};
+      sinon.assert.calledWith(
+          prpcClient.call, 'monorail.v3.Permissions',
+          'BatchGetPermissionSets', args);
+
+      const action = {
+        type: permissions.BATCH_GET_SUCCESS,
+        permissionSets: [example.PERMISSION_SET_ISSUE],
+      };
+      sinon.assert.calledWith(dispatch, action);
+    });
+
+    it('failure', async () => {
+      prpcClient.call.throws();
+
+      await permissions.batchGet([exampleIssues.NAME])(dispatch);
+
+      const action = {
+        type: permissions.BATCH_GET_FAILURE,
+        error: sinon.match.any,
+      };
+      sinon.assert.calledWith(dispatch, action);
+    });
+
+    it('fills in permissions field', async () => {
+      const response = {permissionSets: [{resource: exampleIssues.NAME}]};
+      prpcClient.call.returns(Promise.resolve(response));
+
+      await permissions.batchGet([exampleIssues.NAME])(dispatch);
+
+      const action = {
+        type: permissions.BATCH_GET_SUCCESS,
+        permissionSets: [{resource: exampleIssues.NAME, permissions: []}],
+      };
+      sinon.assert.calledWith(dispatch, action);
+    });
+  });
+});